Invention Grant
- Patent Title: Single event effect mitigation
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Application No.: US16701731Application Date: 2019-12-03
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Publication No.: US11409609B2Publication Date: 2022-08-09
- Inventor: David F Brookes
- Applicant: ROLLS-ROYCE plc
- Applicant Address: GB London
- Assignee: ROLLS-ROYCE plc
- Current Assignee: ROLLS-ROYCE plc
- Current Assignee Address: GB London
- Agency: Oliff PLC
- Priority: GB1820116 20181211
- Main IPC: G06F11/14
- IPC: G06F11/14 ; G05B19/045 ; G06F1/26 ; G06F11/07 ; G06F11/30

Abstract:
A multi-logic device system, an electronic engine controller, and a method of operating the multi-logic device system. The multi-logic device system includes a primary logic device which is more resilient to single event effects, and one or more secondary logic devices, each secondary logic device being powered by a respective power supply unit and being more susceptible to single event effects. The primary logic device is configured to run, for each secondary logic device, a respective watchdog timer. Each watchdog timer is restarted upon receipt of a restart signal from the respective secondary logic device. The primary logic device is also configured, in response to a watchdog timer timing out, to identify and reset the secondary logic device corresponding to the timed out watchdog timer.
Public/Granted literature
- US20200183790A1 SINGLE EVENT EFFECT MITIGATION Public/Granted day:2020-06-11
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